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Green synthesis and characterization of anisotropic uniform single-crystal alpha-MoO3 nanostructures
Fang, Liang; Shu, Yuying; Wang, Aiqin; Zhang, Tao
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY C
2007-02-15
DOI10.1021/jp065791r
Volume111Issue:6Pages:2401-2408
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS KeywordFIELD-EMISSION PROPERTIES ; MOLYBDENUM TRIOXIDE ; CARBON NANOTUBES ; MOO3 NANOBELTS ; INORGANIC NANOTUBES ; THERMAL-BEHAVIOR ; THIN-FILMS ; OXIDE ; NANORODS ; OXIDATION
AbstractAnisotropic uniform single-crystal nanostructures of alpha-MoO3 have been synthesized successfully via a novel green and facile approach, i.e., decomposition and condensation of peroxomolybdic acid under hydrothermal conditions. The structure and morphology of the products were characterized by means of X-ray diffraction, transmission electron microscopy, selected area electron diffraction, high-resolution transmission electron microscopy, scanning electron microscopy, thermogravimetric/differential thermal analysis, temperature programmed decomposition-mass spectrometry, and Fourier transform infrared spectroscopy. It has been found that the formation of alpha-MoO3 proceeds at hydrothermal temperatures higher than 83.5 degrees C and that of MoO2.67-(O-2)(0.33)(.)0.75H(2)O is at 81.5 degrees C with the 0.9 mol/L molybdenum solution. The as-synthesized uniform nanostructures grow preferentially along [001], and the dimensions are 200-330 nm in width, 60-90 nm in thickness, and up to 10 mu m in length during time spans from 20 to 45 h at 170 degrees C. The structure and morphology of alpha-MoO3 show a weak dependence on the molybdenum concentrations of 0.2-0.9 mol/L, while the growth in the b-axis direction can be enhanced distinctly and specifically by the addition of nitric acid to the initial peroxomolybdic acid solution. The critical point in temperature (81.5-83.5 degrees C) to form hydrate and oxide is discussed, and one possible mechanism is proposed.
Language英语
WOS IDWOS:000245005700008
Citation statistics
Cited Times:92[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/140557
Collection中国科学院大连化学物理研究所
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Fang, Liang,Shu, Yuying,Wang, Aiqin,et al. Green synthesis and characterization of anisotropic uniform single-crystal alpha-MoO3 nanostructures[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2007,111(6):2401-2408.
APA Fang, Liang,Shu, Yuying,Wang, Aiqin,&Zhang, Tao.(2007).Green synthesis and characterization of anisotropic uniform single-crystal alpha-MoO3 nanostructures.JOURNAL OF PHYSICAL CHEMISTRY C,111(6),2401-2408.
MLA Fang, Liang,et al."Green synthesis and characterization of anisotropic uniform single-crystal alpha-MoO3 nanostructures".JOURNAL OF PHYSICAL CHEMISTRY C 111.6(2007):2401-2408.
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